package org.csu.mypetstore.persistence;
import java.sql.*;
public class DBUtil {
    //完成数据的连接释放
    private static String driverString = "com.mysql.jdbc.Driver";
    private static String connectionString = "jdbc:mysql://localhost:3306/mypetstore";
    private static String username = "root";
    private static String password = "998188";

    public static Connection getConnection() throws Exception{
        Connection connection = null;
        try{
            Class.forName(driverString);
            connection = DriverManager.getConnection(connectionString,username,password);
        }catch (Exception e){
            throw e;
        }
        return connection;
    }

    public static void closeStatement(Statement statement) throws Exception{
        statement.close();
    }

    public static void closePreparedStatement(PreparedStatement pStatement)
        throws Exception{
        pStatement.close();
    }

    public static void closeResultSet(ResultSet resultSet) throws Exception{
        resultSet.close();
    }

    public static void closeConnection(Connection connection) throws Exception{
        connection.close();
    }

    /*测试代码
    public static void main(String[] args) throws Exception {
        Connection conn = DBUtil.getConnection();
        System.out.println(conn);
    }*/
}
